I ordered and received Cubase Essential 4.

I have the disc, the activation key, the codes, the manuals. I read everything. I downloaded and installed the 3.1 windows update as instructed.

when I insert the disc nothing happens. I do not see the icon CubaseEssential4 to click on. I cannot get through installation, LLC, activation....nothing.

what is going wrong? do I have a faulty disc?
can anyone explain the correct steps I should be taking to install my upgrade.

help please.